01129+5136 HDS 160AB (V1012 Cas)

Coord 2000	01129+5136		Discov num	HDS 160		Comp	AB		Coord arcsec 2000	01 12 53.87 +51 36 09.0
Date first	1991		Date last	2013		Obs	16
Pa first	348		Pa last	107		P.A. Now (θ)	107°
Sep first	0.2		Sep last	0.1		Sep. Now (ρ)	0.1"
Mag pri	7.50		Mag sec	9.80		delta mag (ΔM)	2.3		Spectral class	A5 (white)
Pri motion ra	+031		Sec motion ra
Pri motion dec	-066		Sec motion dec
Notes	O W (Orbital solution, )

Visually invisible, K-band or other infrared star This double is physical.

Precise pa	107.1		Precise sep	0.1		Var name	V1012 Cas		Constellation	Cassiopeia
SAO	22094		HIP	5674		Tycho2	3276-00378-1		HD	7169
BD	BD+50 238		Distance	94.79		Distance ly	309.2		last precise pa	107.1
last precise sep	0.1

Period (P)	46.56y		Periastron (T)	2029.98y		Semi-major axis (a)	0.192a
Eccentricity (e)	0.408		Inclination (i)	66.2°		Longitude of periastron (ω)	239.2°
Node (Ω)	27°		Note			Grade	4	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2010

label rho theta 2000 0.218 42.4 2001 0.213 44.7 2002 0.207 47.1 2003 0.200 49.6 2004 0.192 52.3 2005 0.183 55.3 2006 0.174 58.6 2007 0.164 62.2 2008 0.154 66.4 2009 0.144 71.2 2010 0.133 76.6 2011 0.124 83.0 2012 0.115 90.4 2013 0.108 98.9 2014 0.102 108.4 2015 0.099 118.8 2016 0.098 129.6 2017 0.100 140.3 2018 0.105 150.4 2019 0.110 159.5 2020 0.117 167.6 2021 0.125 174.8 2022 0.132 181.1 2023 0.137 186.9 2024 0.141 192.3 2025 0.142 197.6 2026 0.138 202.9 2027 0.129 208.8 2028 0.114 215.8 2029 0.094 225.5 2030 0.070 241.5 Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01129+5136	HDS 160	AB	2013	16	107	0.1	7.50	9.80	A5	OW	011253.87+513609.0

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